Questions and Answers for TP-LINK Smart Wi-Fi Light Switch with 3-Way Kit

A:  Yes, on a three way.

A:  I think you can use these on both. From what I read, you only need to replace 1 of the current 3-way switches (whether it be a 3-way or 4-way setup). I actually also used this HS210 model as a 2-way switch.

A:  Its works as a 3 way switch. I can't answer if it would work on a 4 way however.

A:  Yes, this is a 3way switch. Not 4way.

A:  This product is designed as a 3 way switch.

A:  Yes, the wifi transceiver won't work without a neutral return wire as it draws its power from the hot lead but needs the neutral to complete the circuit.

A:  Yes it requires a neutral. Most smart devices require a neutral.

A:  Yes, this model requires a neutral.

A:  Yes, it does require a neutral wire to work.

A:  Yes, it does require a neutral wire to work.